loongson/mirror: links for autograder

loongson/mirror autograder-3.7.7.tar.gz
loongson/mirror autograder-3.7.7-py3-none-any.whl
loongson/mirror autograder-3.7.6.tar.gz
loongson/mirror autograder-3.7.6-py3-none-any.whl
loongson/mirror autograder-3.7.5.tar.gz
loongson/mirror autograder-3.7.5-py3-none-any.whl
loongson/mirror autograder-1.0.0.tar.gz